A multi-component extrusion die head for producing a composite tube comprises an extrusion nozzle, a main die head, and a melt flow distributor device. The main die head is configured to supply the extrusion nozzle with a first melt flow and a second melt flow, which are guided separately from one anther in the extrusion nozzle away from the main die head and toward a nozzle outlet of the extrusion nozzle. The melt flow distributor device is arranged in the extrusion nozzle outside of the main die head and is configured to split the first melt flow in a peripheral direction thereof, and to supply the second melt flow to the first melt flow such that at least one section of the second melt flow is arranged within the first melt flow in the peripheral direction.

A process and associated system for creating color effects using extrudable material, such as plastic and metal for example, are presented. Flows of first and second viscous materials of respective colors are provided and then combined in a predetermined pattern to form a stream of combined viscous material. A dynamic mixer is the then used to apply a predetermined dividing, overturning and combining motion to the stream of combined viscous material to partially mix the first viscous material and the second viscous material, such that upon exiting the dynamic mixer, the first material of the first color and the second material of the second color form a color pattern in the stream of combined viscous material. The dynamic mixer has elements configured for acquiring a specific radial orientation in a range of radial orientations that may be varied during the application of the dividing, overturning and combining motion to the stream of combined viscous material to cause variations in the color pattern in the stream of combined viscous material. Sheets of extruded material may be created using such process and system and used in the manufacturing of many different products including, but not limited to, kayaks, stand-up paddle boards, garden furniture and many others. In some embodiments, the sheets may be characterized by color bands extending diagonally with reference to a longitudinal extent of the sheet.

In one embodiment, a method of forming an extruded board includes mixing a resin and a foaming agent, melting the mixed resin and foaming agent to form a uniformly colored extrudate, differentially expanding voids formed from the foaming agent within the uniformly colored extrudate by passing the uniformly colored extrudate through a breaker plate, forming a board with the differentially expanded voids and uniformly colored extrudate, and forming lightened portions on an outermost surface of the formed board.

The disclosure relates to a foamed floor with wood texture. It belongs to the technical field of co-extruded foam plate. It includes a foam matrix and a hard surface layer including (a) and (b); (a): a first exposed surface, a connecting substrate and a base layer formed by the first color resin; (b): a second exposed surface and a connecting substrate formed by the second color resin. The first exposed surface is composed of a plurality of exposed units, and the second exposed surface is composed of a plurality of sunken units. The exposed units and the sunken units are arranged alternately. A connecting unit is arranged between the adjacent exposed unit and the sunken unit, and it's composed of the connecting substrate and a connecting profile. The disclosure uses resin as a material, is based on two surface layers, and realizes the realistic effect of wood texture through some levels of expressions such as three-dimensional (depth of texture), color difference, brightness etc. It can also realize a variety of wood textures by adjusting the three-dimensional, chromatic aberration, and brightness.

The disclosure relates to a foamed floor with wood texture. It belongs to the technical field of co-extruded foam plate. It includes a foam matrix and a hard surface layer including (a) and (b); (a): a first exposed surface, a connecting substrate and a base layer formed by the first color resin; (b): a second exposed surface and a connecting substrate formed by the second color resin. The first exposed surface is composed of a plurality of exposed units, and the second exposed surface is composed of a plurality of sunken units. The exposed units and the sunken units are arranged alternately. A connecting unit is arranged between the adjacent exposed unit and the sunken unit, and it's composed of the connecting substrate and a connecting profile. The disclosure uses resin as a material, is based on two surface layers, and realizes the realistic effect of wood texture through some levels of expressions such as three-dimensional (depth of texture), color difference, brightness etc. It can also realize a variety of wood textures by adjusting the three-dimensional, chromatic aberration, and brightness.

A method suitable for solid freeform fabrication is disclosed. The method comprises mixing respective amounts of a plurality of materials such as to provide a building material characterized by at least one attribute, and using the building material for fabricating a three-dimensional object.

A method for manufacturing a foil having a variable strip geometry, which makes it possible to supply a foil that bears a complex security feature. Varying of the geometry is effected by means of a movement of a position-variable distributor rail of the extruder.

A method for manufacturing a foil having a variable strip geometry, which makes it possible to supply a foil that bears a complex security feature. Varying of the geometry is effected by means of a movement of a position-variable distributor rail of the extruder.

A conveyor roller tube (1) including a plurality of co-extruded polymer layers (2, 3). The tube (1) includes an inner layer (2) and an outer layer (3), and an optional intermediate layer. The inner layer (2) is formed of a first polymer material. The outer layer (3) is formed of a second polymer material, The outer layer (3) is formed to have high wear properties, and is also formed to be of a different colour to the adjacent layer (2) thereto so that a visual indication of the wear of the roller tube (1) is provided.

A multilayer membrane comprising at least two co-extruded layers where the two co-extruded layer contain different polymers and one of the two co-extruded layers contains an extrusion additive. Examples of useful extrusion additives may include a nucleating agent or a pore-forming particulate. A method for making the membrane is also disclosed. Using an extrusion additive when co-extruding two different polymers avoids some of the drawbacks associated with processes involving the co-extrusion of different polymers, particularly processes where a co-extruded non-porous precursor is later stretched to form pores. For example, the drawback of lower permeability, difficulty to make lower Gurley, and splittiness may be improved.